Gearing.



K. G. LIKNESS.

GEARING.

APPLICATION FILED APR. 1, 1912.

1,082,34 -9. Patented Dec. 23, 1913.

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KNUTE C. LIKNESS, OF LANGFORD, $OU'lI-I DAKOTA.

GEARING'.

Specification of Letters Patent.

Patented Dec. 23,1913.

Application filed April 1, 1912. Serial No. 687,589.

To all whom it may concern Be it known that I, KNUTE C. LIKNESS, acitizen of the United States, residing at Langford, in the county ofMarshall, State of South Dakota, have invented certain new and usefulImprovements in Gearing; and I do hereby declare the following to be afull, clear, and exact description of the in vention, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention relates to foot operated grindstones, and has for itsobject to provide a device of this character so that the operator willhave free use of both hands when grinding tools.

A further object of the invention is to so construct the device that theoperator may be comfortably seated during the grinding operation.

With these and other objects in view, the invention consists in certainnovel features of construction, combination and arrangement of parts aswill be hereinafter fully described and claimed.

In the drawing: Figure 1 is a side elevation of a grindstone equippedwith the foot power mechanism. Fig. 2 is a rear elevation of the same.Fig. 3 is a sectional view on line 33 of Fig. 2.

Referring to the drawing, the numeral 1 designates the frame, having thesupporting legs 2 for supporting the sills 3, all of which being of theusual construction. Arranged transversely of the sills 3 is an axle 4i,and to which is rigidly connected the grindstone 5. Keyed to the axle 4;is a sprocket wheel 6, the purpose of which will appear later. Securednear one end of the sills 8 are hangers 7, said hangers being providedat their lower ends with boxes 8 for rotatably supporting the shaft 9,the outer ends of said shaft being provided with pedals 10. Keyed to theshaft 9 is a beveled gear 11, the same being held spaced from a similargear 12, which is loosely mounted on said shaft, by a sleeve 13 which issupported by said shaft. Depending from the sleeve 13 is a verticalshaft 14 upon the lower end of which is revolubly mounted a beveled gear15 which is in mesh with the gears 11 and 12. The gear 15 is heldagainst vertical movement on the shaft by collars 16, each of whichbeing provided with a set screw 17 for engaging the shaft 1 1.

The shaft 14 has its lower end seated in a recess 18 formed in thecasting 19. Radiating from the casting 19 are arms 20, each of whichhave their outer ends bolted near the lower ends of the legs 2 of theframe 1, thus firmly bracing the shaft 14:. 1 ixed to the gear 12 1s asprocket wheel 21, the same being greater in diameter than the sprocket6, hereinbefore mentioned. Trained around the sprockets 6 and 21 is asprocket chain 22, which imparts rotary movement to the shaft 4 andgrindstone 5 when the shaft 9 is rotated, thus rotating the grindstonein a direction toward the operator. A seat 23 is provided and ismounted. upon the frame 1 so that the operator may conveniently engagethe pedals for turning the grindstone.

\Vhat is claimed is:

The combination with a frame, of a driving shaft supported by the frame,hangers carried by the frame and having boxes formed at their lowerends, a rotary shaft journaled in said boxes, pedals carried by saidshaft, a beveled gear loosely mounted on the shaft, a similar gear keyedto the shaft, a sleeve carried by the shaft, a vertical shaft dependingfrom the sleeve, a beveled gear carried by said shaft and adapted tomesh with the first named gears, a sprocket connected to the shaft, asecond sprocket fixed to the loosely mounted gear, a sprocket chainconnecting said sprockets, a casting having a recess for receiving thelower end of the vertical shaft, arms radiating from said casting andadapted to have their outer ends secured to the legs of the fame.

In testimony whereof, I affix my signature, in presence of twowitnesses.

KNUTE o. LIKNESS.

Witnesses G. A. LINDQUIST, B. E. COLBY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Batents, Washington, D. G.

